Question

if both gases are at the same temperature, which one has the greater pressure?
gas 1 because the particles are moving much faster
gas 1 because it has fewer particles that are close together
gas 2 because it has more particles that are colliding
gas 2 because the particles have more space between them

Explanation:

Pressure in gases is caused by particle collisions with the container walls. Gas 2 has more particles. More particles mean more frequent collisions. Frequent collisions lead to higher pressure.

Answer:

gas 2 because it has more particles that are colliding